diff --git a/nova_powervm/tests/virt/powervm/disk/test_localdisk.py b/nova_powervm/tests/virt/powervm/disk/test_localdisk.py
index 8011e18b..c170d6fe 100644
--- a/nova_powervm/tests/virt/powervm/disk/test_localdisk.py
+++ b/nova_powervm/tests/virt/powervm/disk/test_localdisk.py
@@ -91,7 +91,7 @@ class TestLocalDisk(test.TestCase):
             None, inst, mock_img, 20)
         mock_upload_vdisk.assert_called_with(mock.ANY, mock.ANY, mock.ANY,
                                              mock.ANY, 'b_Inst_Nam_d506', 50,
-                                             d_size=21474836480L)
+                                             d_size=21474836480)
         self.assertEqual('vdisk', vdisk)
 
     @mock.patch('pypowervm.wrappers.storage.VG')
diff --git a/nova_powervm/virt/powervm/disk/driver.py b/nova_powervm/virt/powervm/disk/driver.py
index 9a3f9ae8..4e117fc5 100644
--- a/nova_powervm/virt/powervm/disk/driver.py
+++ b/nova_powervm/virt/powervm/disk/driver.py
@@ -63,7 +63,7 @@ class IterableToFileAdapter(object):
         chunk = self.remaining_data
         try:
             while not chunk:
-                chunk = self.iterator.next()
+                chunk = next(self.iterator)
         except StopIteration:
             return ''
         return_value = chunk[0:size]
diff --git a/tox.ini b/tox.ini
index 347e6a8a..738abaa4 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,6 @@
 [tox]
 minversion = 1.6
-envlist = py33,py27,pep8
+envlist = py34,py27,pep8
 skipsdist = True
 
 [testenv]